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Related Concept Videos

Administering Oxygen by Mask01:30

Administering Oxygen by Mask

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Administering Oxygen by Mask
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
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PPE Use in Healthcare Settings II: Doffing01:10

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The sequence of removing or doffing PPE starts with the gloves, as they are the most contaminated. Next is removal of the face shield or goggles, as they would interfere with removing other PPE. Then remove the gown, followed by the mask or respirator. Perform hand hygiene between steps if hands become contaminated and immediately after removing all PPE. Generally, the outside front and sleeves of the isolation gown, the goggles or the mask, the respirator, and the face shield are contaminated.
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Masking and Demasking Agents01:19

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EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
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Transmission-based Precautions II: Airborne and Protective Environment01:25

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Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
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PPE Use in Healthcare Settings I: Donning01:22

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Donning PPE must be completed before contact with the patient. This process protects from infectious agents. The sequence and action included in each donning are critical, and the steps must be systematic to avoid exposure to pathogens. The institutional policy also needs to be followed while donning PPE. The pre-donning preparations are gathering equipment, inspecting the PPE equipment for tears, holes, or damage, removing jewelry, removing any garments below the elbows, and tying the hair...
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Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

Oxygen Delivering System I: Nasal Cannula and Face Mask

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The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
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Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
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Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
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Do They Really Work? Quantifying Fabric Mask Effectiveness to Improve Public Health Messaging.

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  • 1School of Human Sciences, Mississippi State University, Starkville, MS 39762, USA.

International Journal of Environmental Research and Public Health
|June 10, 2022
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Mask type, fabric, and seal significantly impact filtration efficiency (FE) and protection. Surgical and N95 respirators offer superior FE and differential pressure (dP), especially when properly sealed.

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Area of Science:

  • Public Health
  • Respiratory Protection
  • Material Science

Background:

  • Masks are crucial for preventing respiratory illness transmission.
  • Understanding mask performance variations is vital for public health guidance.
  • Different mask types (fabric, surgical, N95) exhibit varying protective capabilities.

Purpose of the Study:

  • To compare filtration efficiency (FE), differential pressure (dP), and leakage of non-medical/fabric, surgical, and N95 respirators.
  • To provide evidence for improving public health messaging on mask usage.
  • To highlight the impact of mask fit (sealed vs. unsealed) on performance.

Main Methods:

  • Masks were tested using an anthropometric face filtration mount.
  • Filtration efficiency, differential pressure, and leakage were measured.
  • Comparisons were made between sealed and unsealed mask conditions.

Main Results:

  • Surgical and N95 respirators demonstrated significantly higher FE and dP compared to fabric masks.
  • Masks with higher weight and thicker fabric showed increased FE.
  • Leakage was identified as a critical factor influencing overall mask efficiency.
  • Unsealed masks, particularly around the edges, significantly reduce effective FE, potentially creating a false sense of security.

Conclusions:

  • Mask type, fabric characteristics, and proper sealing critically influence protective effectiveness.
  • Clear communication regarding the importance of mask fit and seal is essential for healthcare workers and the public.
  • Findings underscore the need for accurate representation of personal protective equipment (PPE) performance based on fit.